Role of exopolymeric protein on the settleability of nitrifying sludges

The relationship of exopolymeric substances and the sludge volume indexes (SVI) of two nitrifying sludge were studied over a period of time (30 d) in two different types of reactors: (1) a stirred tank aerated nitrifying reactor (SANR) and (2) an air-lift nitrifying reactor (ALNR). Concentrations of...

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Bibliographic Details
Published in:Bioresource technology 2004-08, Vol.94 (1), p.43-48
Main Authors: Martı́nez O, Felipe, Lema, Juan, Méndez, Ramón, Cuervo-López, Flor, Gómez, Jorge
Format: Article
Language:English
Subjects:
Bacteria - metabolism
Biodegradation, Environmental
Biological and medical sciences
Biopolymers - analysis
Bioreactors
Electrophoresis, Polyacrylamide Gel
Exopolymeric protein
Flocculation
Fundamental and applied biological sciences. Psychology
Molecular weight
Nitrifying sludge
Proteins - analysis
Sewage - chemistry
Sewage - microbiology
Sludge volume index
Time Factors
Waste Disposal, Fluid - methods
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Summary:The relationship of exopolymeric substances and the sludge volume indexes (SVI) of two nitrifying sludge were studied over a period of time (30 d) in two different types of reactors: (1) a stirred tank aerated nitrifying reactor (SANR) and (2) an air-lift nitrifying reactor (ALNR). Concentrations of lipids, carbohydrates and proteins of the EPS were determined in both reactors. The variation in lipids and carbohydrates was low (
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2003.11.010